'NoneType' object has no attribute '__getitem__'

[Giuseppe De Marco]

'NoneType' object has no attribute 'getitem'

in

dal/widgets.py in render, line 130

class OlaGruppoDiStudioFilter(AutocompleteFilter):
    title = 'Gruppo di studio' 
    parameter_name = 'ola_gruppo_di_studio'
    autocomplete_url = 'ola_gruppo-autocomplete'

class OlaGruppoDiStudioAutocomplete(autocomplete.Select2QuerySetView):
    def get_queryset(self):
        if not self.request.user.is_authenticated():
            return OlaGruppoDiStudio.objects.none()
        qs = OlaGruppoDiStudio.objects.all()
        if self.q:
            qs = qs.filter(
                            Q(nome__istartswith=self.q) |
                            Q(ola_instructor__cognome__istartswith=self.q)|
                            Q(ola_instructor__nome__istartswith=self.q)
                          )
        return qs.order_by('nome')

I tested it in two different apps, with two different models schema and parameter name.
Is it caused by some Null value in FK ?

If any news please let me know, I'd like to use this django app widely in my projects

[shamanu4]

Please show your code of dal/widgets.py at line 130.

[Giuseppe De Marco]

dal/widgets.py from line 127 to line 131:

    def render(self, name, value, attrs=None):
        """Calling Django render together with `render_forward_conf`."""
        widget = super(WidgetMixin, self).render(name, value, attrs)
        conf = self.render_forward_conf(attrs['id'])
        return mark_safe(widget + conf)

attrs is None and exception is raised

[shamanu4]

I can't reproduce this error.
Can you fork this repository and make changes into demo_project to make this bug appear there?

[Giuseppe De Marco]

Yeah, error with some dependencies, now everything works fine.

The problem occours with django-autocomplete-light-3.2.1

[shamanu4]

Thanks for report.
I'll check compatibility with newest django and django-autocomplete-light versions.